Discuss March 2017

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111 discussions

Anyone ever gotten Solaris to install from a CentOS PXE server?
by Locane 20 Mar '17

20 Mar '17

I'm poking through Solaris documentation trying to figure out how to make it installable via our PXE server and, as with many things Solaris, I'm hitting walls of completely foreign procedures and setups. Has anyone managed to do this before? I'm trying to set Solaris 11.3 up.

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Re: [CentOS] Need help
by m.roth＠5-cent.us 20 Mar '17

20 Mar '17

I'm sending to you, directly, because manitu is again blocking my ISP.... Rosenthal, Shoshana wrote: > You are right it is a Dell PowerEdge. However as I said it stops in the middle of booting with no message. > > On Mon, Mar 20, 2017 at 3:11 PM, John R Pierce <pierce(a)hogranch.com> wrote: > >> On 3/20/2017 11:54 AM, Scott Robbins wrote: >> >>> I am running centos 6.8 >>>> The system went down when we try to reboot it we get the >>>> message ST:3P7Y9Y1 >>>> Do you know what the problem might be. >>>> <snip> You say "in the middle of booting" - please define. 1. Did it finish POST? 2. Did you see the kernel it was about to boot, displayed by grub? If the latter, *sigh*, hit "e" when you see the kernel, then edit the kernel line, and DELETE rhgb quiet, then boot. mark

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Re: [CentOS] CentOS-6.8 fsck report Maximal Count
by James B. Byrne 20 Mar '17

20 Mar '17

On Fri, March 10, 2017 11:57, m.roth(a)5-cent.us wrote: > > Looks like only one sector's bad. Running badblocks should, > I think, mark that sector as bad, so the system doesn't try > to read or write there. I've got a user whose workstation has > had a bad sector running for over a year. However, if it > becomes two, or four, or 64 sectors, it's replacement > time, asap. > <snip> Bear with me on this. The last time I did anything like this I ended up having to boot into recovery mode from an install cd and do this by hand. This is not an option in the present circumstance as the unit is a headless server in a remote location. If I do this: echo '-c' > /fsckoptions touch /forcefsck shutdown -r now Will this repair the bad block and bring the system back up? If not then what other options should I use? The bad block is located in an LV assigned to a libvirt pool associated with a single vm. Can this be checked and corrected without having to deal with the base system? If so then how? Regards, -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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cPanel install failes on CentOS7
by Adam Tauno Williams 20 Mar '17

20 Mar '17

Attempting to install cPanel on a CentOS7 box [consultant wants it]. The install fails ... 2017-03-20 13:45:42 249 (DEBUG): Package perl-core-5.16.3-291.el7.x86_64 already installed and latest version 2017-03-20 13:45:42 249 (DEBUG): Package perl-libwww-perl-6.05-2.el7.noarch already installed and latest version 2017-03-20 13:45:42 249 (DEBUG): Package crontabs-1.11-6.20121102git.el7.noarch already installed and latest version 2017-03-20 13:45:42 249 (DEBUG): Package sysstat-10.1.5-11.el7.x86_64 already installed and latest version 2017-03-20 13:45:42 249 (DEBUG): Nothing to do 2017-03-20 13:45:42 249 (DEBUG): - ssystem [END] 2017-03-20 13:45:42 781 (DEBUG): - ssystem [BEGIN]: /usr/local/cpanel/scripts/checkyum --nokernel --noperl open3: exec of /usr/local/cpanel/scripts/checkyum --nokernel --noperl failed at /home/cPanelInstall/selfgz5400/install line 268.Removing /root/installer.lock. The interpreter in /usr/local/cpanel/scripts/checkyum is "/usr/local/cpanel/3rdparty/bin/perl" which does not exist.

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SYSCALL problem in C7
by Fred Smith 20 Mar '17

20 Mar '17

Hi all! I know this isn't a devel list, but thought someone here may have a clue I could use... I have a fairly big application that runs on Centos 7 (and 6 and 5). Sometimes (not often, but too often) when running under the ddd debugger, while sitting stopped at a breakpoint, it will suddenly spew an apparent segfault in, as it says at the top of the source file, "Assembly code template for system call stubs". The specific place always looks like this: T_PSUEDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS) ret_ERRVAL T_PSEUDO_END_ERRVAL (SYSCALL_SYMBOL) the red error marker points to SYSCALL_NAME. I have no idea why its doing this, it never does it when not running in the debugger, as far as I can tell. and why it would croak in the debugger while sitting (apparently) idle at a breakpoint is beyond me. anyone here got a clue? thanks in advance! -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- "Not everyone who says to me, 'Lord, Lord,' will enter the kingdom of heaven, but only he who does the will of my Father who is in heaven." ------------------------------ Matthew 7:21 (niv) -----------------------------

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CentOS-announce Digest, Vol 145, Issue 8
by centos-announce-request＠centos.org 20 Mar '17

20 Mar '17

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. CESA-2017:0559 Moderate CentOS 6 openjpeg Security Update (Johnny Hughes) 2. CESA-2017:0558 Critical CentOS 7 firefox Security Update (Johnny Hughes) ---------------------------------------------------------------------- Message: 1 Date: Mon, 20 Mar 2017 08:25:44 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:0559 Moderate CentOS 6 openjpeg Security Update Message-ID: <20170320082544.GA29156(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:0559 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-0559.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: 02e27ed7e8b6bff9b8ec4f67555fdd7db4c4f58337b40a03800174665b554806 openjpeg-1.3-16.el6_8.i686.rpm 2f3b00f939b54431e661b7375e039fe85613c4015724c277616cb150e2610cb5 openjpeg-devel-1.3-16.el6_8.i686.rpm d922e3acc84b2b15ab136cfba03013e269c160a75f2d97862bd0321ab6abab21 openjpeg-libs-1.3-16.el6_8.i686.rpm x86_64: 7337114ea2f5a315d06ff2dfe4ec0cba4e0576502c04e8722fbc0533abbec601 openjpeg-1.3-16.el6_8.x86_64.rpm 2f3b00f939b54431e661b7375e039fe85613c4015724c277616cb150e2610cb5 openjpeg-devel-1.3-16.el6_8.i686.rpm eb7849e478c1d8bbe7c08c57d2eedec58a6fca7802033f6b6f283176118725c2 openjpeg-devel-1.3-16.el6_8.x86_64.rpm d922e3acc84b2b15ab136cfba03013e269c160a75f2d97862bd0321ab6abab21 openjpeg-libs-1.3-16.el6_8.i686.rpm ed488c9b78118803ec38a7dc6aa1be7f04e0f5a3c15ff49c9eb31f2ad1ea244c openjpeg-libs-1.3-16.el6_8.x86_64.rpm Source: e48dcef19de9e4f41049d690eae143aa06058eb2d560530844ce3be500759ef6 openjpeg-1.3-16.el6_8.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Message: 2 Date: Mon, 20 Mar 2017 08:40:56 +0000 From: Johnny Hughes <johnny(a)centos.org> To: centos-announce(a)centos.org Subject: [CentOS-announce] CESA-2017:0558 Critical CentOS 7 firefox Security Update Message-ID: <20170320084056.GA44240(a)n04.lon1.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2017:0558 Critical Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-0558.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) x86_64: 2ab96c7e804d0816c27341b2baceb6d9d12fa81cc2d3d16dd9421eda83ffd696 firefox-52.0-5.el7.centos.i686.rpm 58040774979bf3b82a7fd159b62e87e56b27d69097bab7181bf04b5b260ea354 firefox-52.0-5.el7.centos.x86_64.rpm Source: deb69db57f095fcc47ae7df159ae74d75c6150e4eec7dc1910863b8cefdc8ff4 firefox-52.0-5.el7.centos.src.rpm -- Johnny Hughes CentOS Project { http://www.centos.org/ } irc: hughesjr, #centos(a)irc.freenode.net Twitter: @JohnnyCentOS ------------------------------ Subject: Digest Footer _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org https://lists.centos.org/mailman/listinfo/centos-announce ------------------------------ End of CentOS-announce Digest, Vol 145, Issue 8 ***********************************************

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usb 3.1 support in CentOS 7
by Jerry Geis 20 Mar '17

20 Mar '17

Hi All - Been trying to find out if USB 3.1 support is in CentOS 7 and kernel 3.10 ? I see its in the 4.X kernel - but what about CentOS 7? Was hoping to make my external backups faster. Thanks, Jerry

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upgrading Mysql 5.0.95
by Mark Weaver 20 Mar '17

20 Mar '17

Hi All, I'm getting things ready to upgrade my aging installation of MySQL 5.0.95 on my CentOS 5 LAMP server. With the impending EOL date of 3.31 fast approaching my sense of doom and urgency is increasing. I see that the necessary packages are available in @base and @updates - mysql51 and mysql55 respectively but from all the information I've read on the matter so far I'm left with a few questions I don't yet have answers to.' What I've done so far and thankfully was able recover from: 1. installed and enabled to epel repo - ran yum remove mysql - this command wanted to remove a few things I wanted to keep in place like dovecot and a few php53 packages. I didn't want to have to go back and clean up any messes that would create. So, I used the rpm -e --nodeps command to remove the MySQL packages. - because this was a redhat repo it installed the binaries in a total different place AND tossed all my existing data directories. and yes I spit coffee all over my laptop screen and yes, I did have data dir backups and a dump of MySQL data. HOLY CRAP! 2. removed the epel packages - disabled this repo - for ever at least for now... 3. reinstalled the old MySQL 5.0.95 packages - because I was hyper-ventilating - reset roots password - imported all the databases from the dump and checked my web apps - everything working again. - I did have to recreate the mysql.servers table to be able to flush privileges. I understand that mysql51 is available in @base for the sole purpose of upgrading old MySQL and mysql55 is in updates for getting to 5.5, however here is where things get a little fuzzy for me: Steps for Upgrading (as I understand them): 1. Take a dump of all mysql database using mysqldump --add-drop-database --all-databases 2. Stop mysql services 3. make a backup of data directories: /var/lib/mysql (but its not _supposed_ to remove the data directories.) 3. yum remove mysql mysql-server (again, it will include a few things I don't want removed. so, i'll have to use rpm -e --nodeps and list the packages for removal then issue yum clean all.' 4. yum install mysql51 5. start mysql service 6. run command mysql_upgrade... (here's where things start getting fuzzy) Question #1: is this command to be run from the commandline or should I log into mysql as root user and run the command? Question #2: at this point I will have mysql 5.1 installed and running but to get up to 5.5 am I expected to yum remove 5.1 and then yum install 5.5 from @updates and repeat steps 5 and 6 OR simply run the command yum update mysql51* to catch all already installed mysql51 packages to and then run the mysql_update command to bring data up to date with the current mysql install? THank you for your kind attention... -- Mark

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Up to date guide/information Sendmail SMTP Auth
by Mark Weaver 19 Mar '17

19 Mar '17

Hello all, I've been googling my brains out since yesterday looking for up-to-date information on this matter, and have found information that is anywhere from 15 to 5 years old. I'd really like some information that much more up to date on the subject. Specifically configuring Sendmail SMTP authentication (_no smart host stuff_). I've got Sendmail 8.14 installed on a CentOS 7.3 server. Also installed: - Cyrus-sasl - Dovecot - Openssl Essentially everything I need except the working knowledge for the process. If someone knows where I might locate this information it would be greatly appreciated. thanks Mark

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Centos-6.8 fsck and lvms
by James B. Byrne 18 Mar '17

18 Mar '17

I have a CentOS-6.8 system which has a suspected HHD failure. I have booted it into rescue mode from a CentOS-6.5 minimal install CD in order to run fsck -c on it. The system hosts several vms. I have activated the lvs associated with these vm using pvscan -s ; vgscan ; vgchange -ay. An lvscan shows the lvs as ACTIVE. None are mounted. When I try to run fsck on any of them I see the following error: fsck from util-linux-ng.2.17.2 e2fsck 1.41.12.(17-May-2010) fsck.ext2: No such file or directory while trying to open /dev/vg. . . The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or simething else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> Trying to find alternate super-blocks proves futile: dump2fs /dev/sda2 | grep -i superblock dump2fs 1.41.12 (17-May-2010) dump2fs: Bad magic number in super-block while trying to open /dev/sda2 Couldn't find valid filesystem superblock The file systems on this host were all created as type ext4 and all are lvs with the exception of /boot, which is not an lv and has its own partition on /dev/sda1. I infer that the HDD is gone the way of all flesh; or ferrite as the case may be. But, my ignorance on this is profound so if I am missing some form of recovery step I would appreciate some guidance on how to proceed. Thanks, -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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